A couple of pictures of Gin Head Radar laboratory and outbuilding near Tantallon castle, which is between Dunbar & North Berwick in Scotland...
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radar « Secret Scotland pic 63 shows a fairly standard concrete bunker, but it has a hoist and a whole selection of fittings etc on the roof presumably for radar masts etc. you can just about see the laboratory with all its barbed wire in the distance.... pic 65 shows the laboratory itsself, looks like something from james bond or dr who!!!! rather a lot of barbed wire etc for a disused building :-) sadly I had a poor camera on that trip, but yet another on the long list of places to revisit.